Figure 2

Expression levels of transcripts corresponding to polyamine metabolism genes in R. arenarum larvae. A, Genes related to polyamine synthesis and its regulation. B, genes related to polyamine degradation. Significance levels for Kruskal–Wallis and median tests, * p = 0.09; ¤ p = 0.08; †p = 0.04; III p = 0.0001. AZM azinphosmethyl, CPF chlorpyrifos, at 6 h and 24 h exposures; gene codes are detailed in the text.